#pragma once

#include "Comm.hpp"

class Any
{
private:
    class holder 
    {
    public:
        virtual const std::type_info& type() = 0;
        virtual holder* clone() = 0;
        virtual ~holder() {}
    };

    template<class T>
    class placeholder : public holder
    {
    public:
        placeholder(const T& val) : _val(val) {}

        virtual const std::type_info& type() override
        {
            return typeid(T);
        }

        virtual holder* clone() override
        {
            return new placeholder(_val);
        }

        T _val;
    };

    Any& swap(Any& other)
    {
        std::swap(_content, other._content);
        return *this;
    }

public:
    Any() : _content(nullptr) {}

    template<class T>
    Any(const T& val) : _content(new placeholder<T>(val)) {}

    Any(const Any& other) : _content(other._content ? other._content->clone() : nullptr) {}

    template<class T>
    T* getValPtr()
    {
        assert(typeid(T) == _content->type());
        return &(((placeholder<T>*)_content)->_val);
    }

    template<class T>
    Any& operator=(const T& val)
    {
        Any(val).swap(*this);
        return *this;
    }

    Any& operator=(const Any& other)
    {
        Any(other).swap(*this);
        return *this;
    }

    ~Any() { if (_content) delete _content; _content = nullptr; }

private:
    holder* _content;
};